Question: In Java with explanation please. As mentioned in the text, a Java identifier consists of one or more characters. The first character must be an

In Java with explanation please.

As mentioned in the text, a Java identifier consists of one or more characters. The first character must be an uppercase or lowercase letter of the alphabet, an underscore or a dollar sign $ Each remaining character must be an uppercase or lowercase letter of the alphabet, a digit 0-9, an underscore, or a dollar sign. Write a Java program that reads in a line of characters and prints out whether the line of characters is a legal Java identifier

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